Table 1 The manufacturers’ compositional information and experimentally determined filler weight percentage63 of the materials investigated, and bleaching agent used.
Materials (code) | Manufacturer | Composition by weight (%) represented by manufacturers | Filler composition by weight (%) determined by ashing (SD) | ||
|---|---|---|---|---|---|
Polymer matrix | Filler matrix | ||||
Polymer infiltrated ceramic network (PICN) | Vita Enamic (EN) | Vita Zahnfabrik, Bad Säckingen, Germany | 14% UDMA + TEGDMA | 86% fine structure feldspar ceramic | 85.1 (0.1) |
Resin composite CAD CAM blocks | Grandio Blocs (GR) | VOCO GmbH, Cuxhaven, Germany | 14% UDMA + DMA | 86% nanohybrid fillers | 84.6 (0.01) |
Lava Ultimate (LU) | 3M ESPE, St Paul, MN, USA | 20% (bis-GMA, UDMA, bis-EMA, TEGDMA) | 80% silica and zirconia nano particles | 74.8 (0.1) | |
BRILLIANT Crios (BC) | COLTENE, Altstätten, Switzerland | Cross-linked methacrylates (bis-GMA, bis-EMA, TEGDMA) | 70% of glass and amorphous silica | 70.1 (0.05) | |
Cerasmart (CS) | GC Corporation, Tokyo, Japan | Bis-MEPP, UDMA, DMA | 71% silica and barium glass nanoparticles | 66.1 (0.2) | |
Bleaching agent | Opalescence Boost | Manufacturer | Type | Composition | |
Ultradent Products, South Jordan, UT, USA | Chemically activated in-office bleaching agent | 40% hydrogen peroxide (H2O2), potassium nitrate and fluoride | |||
